Speaker



FIG. 1 is the front perspective view of a speaker showing my new design;

FIG. 2 is the front view thereof;

FIG. 3 is the rear view thereof;

FIG. 4 is the left-side view thereof;

FIG. 5 is the right-side view thereof;

FIG. 6 is the top plan view thereof; and,

FIG. 7 is the bottom plan view thereof.

The broken lines in the drawing show unclaimed environment only and form no part of the claimed design.

The dot dash lines in the figures represent an unclaimed boundary line and form no part of the claimed design. 

CLAIM I claim the ornamental design for a speaker, as shown and described. 